this is numerology (false positives in pattern recognition) unless you also propose a predictive mechanism that explains the 4 year happening cycle. Every year shit happens and you could probably cherry pick data to fit any interval for cyclical happenings.
Marx's crisis theory predicts major capitalist crisis like roughly every decade, but that has like a lot of theory going into it, not just a list with dates and happenings. So in conclusion you just gave us 4 data points and are demanding we interpolate data for 2024. This amounts to loose speculations without substance, but fair enough I'm going to guess 2024 the dollar hegemony ends and that causes dramatic happenings of some kind.